Vanderhall Motor Works

Vanderhall Motor Works is a privately held American vehicle manufacturer founded in 2010 by Steve Hall and headquartered in Provo, Utah. The company hand-builds three-wheeled autocycles — the Laguna, Venice, Venice Speedster, Carmel and Santarosa — alongside the all-electric Edison and the quad-motor Brawley off-road UTV, selling through an independent dealer network rather than direct to consumers. Its software footprint is internal rather than commercial: Vanderhall runs a dealer portal, an admin portal and a parts/accessory shop on its own domain, and the admin portal publishes an OAuth-protected Model Context Protocol (MCP) endpoint at https://portal.vanderhallusa.com/mcp with RFC 8414 authorization-server metadata, RFC 9728 protected-resource metadata and RFC 7591 dynamic client registration. There is no public developer program, no published OpenAPI, and no public API reference.

Vanderhall Motor Works publishes 1 API on the APIs.io network. Tagged areas include Company, Automotive, Manufacturing, Electric Vehicles, and Power-Sports.

Vanderhall Motor Works’ developer surface includes support, authentication, and 16 more developer resources.

🌐 Visit website 📡 Source on GitHub

16.2/100 emerging ▬ flat Agent 36/100 agent ready Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0

1 APIs 1 MCP Servers

Company Automotive Manufacturing Electric Vehicles Power-SportsAutocyclesDealer NetworkMCPUtah

Kin Score

Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0

Composite quality — 16.2/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 2.8 / 17

Access Clarity 1.1 / 17

Operational Transparency 0.3 / 11

Contract Governance 1.9 / 10

Discoverability 5.8 / 9

Regulatory Posture 4.2 / 15

Agent readiness — 36/100 · agent ready

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Energy & Utilities regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/vanderhall-motor-works: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Vanderhall Admin Portal MCP Server

An OAuth-protected Model Context Protocol endpoint served from the Vanderhall Admin Portal at https://portal.vanderhallusa.com/mcp. The endpoint is live and speaks JSON-RPC 2.0,...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Vanderhall Admin Portal MCP Server

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Vanderhall Motor Works Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Vanderhall Motor Works Rate Limits

0 limits

RATE LIMITS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Vanderhall Motor Works Authentication

1 scheme

SECURITY

Vanderhall Motor Works Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Vanderhall Motor Works Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

MCPServer

MCPServer

WellKnown

WellKnown

LLMsTxt

LLMsTxt

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Conventions

Lifecycle

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support

Support

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Plans

Plans

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: vanderhall-motor-works
name: Vanderhall Motor Works
description: 'Vanderhall Motor Works is a privately held American vehicle manufacturer founded in 2010 by Steve Hall and headquartered
  in Provo, Utah. The company hand-builds three-wheeled autocycles — the Laguna, Venice, Venice Speedster, Carmel and Santarosa
  — alongside the all-electric Edison and the quad-motor Brawley off-road UTV, selling through an independent dealer network
  rather than direct to consumers. Its software footprint is internal rather than commercial: Vanderhall runs a dealer portal,
  an admin portal and a parts/accessory shop on its own domain, and the admin portal publishes an OAuth-protected Model Context
  Protocol (MCP) endpoint at https://portal.vanderhallusa.com/mcp with RFC 8414 authorization-server metadata, RFC 9728 protected-resource
  metadata and RFC 7591 dynamic client registration. There is no public developer program, no published OpenAPI, and no public
  API reference.'
image: https://dealer.vanderhallusa.com/android-icon-192x192.png
url: https://raw.githubusercontent.com/api-evangelist/vanderhall-motor-works/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-09-02'
modified: '2026-09-02'
tags:
- Company
- Automotive
- Manufacturing
- Electric Vehicles
- Power-Sports
- Autocycles
- Dealer Network
- MCP
- Utah
tags_raw:
- Company
- Automotive
- Manufacturing
- Electric Vehicles
- Powersports
- Autocycles
- Dealer Network
- Model Context Protocol
- Utah
apis:
- name: Vanderhall Admin Portal MCP Server
  description: 'An OAuth-protected Model Context Protocol endpoint served from the Vanderhall Admin Portal at https://portal.vanderhallusa.com/mcp.
    The endpoint is live and speaks JSON-RPC 2.0, but every method — including tools/list and initialize — returns -32001
    "Unauthorized: missing bearer token" without a token, so the tool set and its input schemas are not publicly discoverable.
    Authorization is described by RFC 8414 authorization-server metadata and RFC 9728 protected-resource metadata at the portal''s
    /.well-known/ paths: authorization code with PKCE (S256), dynamic client registration, refresh tokens, and a single scope,
    `mcp`.'
  humanURL: https://portal.vanderhallusa.com/
  baseURL: https://portal.vanderhallusa.com/mcp
  tags:
  - MCP
  - Authentication
  - Dealer Operations
  tags_raw:
  - Model Context Protocol
  - OAuth
  - Dealer Operations
  properties:
  - type: MCPServer
    url: mcp/vanderhall-motor-works-mcp.yml
  - type: Authentication
    url: authentication/vanderhall-motor-works-authentication.yml
  - type: OAuthScopes
    url: scopes/vanderhall-motor-works-scopes.yml
  - type: ErrorCatalog
    url: errors/vanderhall-motor-works-problem-types.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://vanderhallusa.com/
- type: Login
  url: https://dealer.vanderhallusa.com/
- type: Support
  url: https://dealer.vanderhallusa.com/contact/
- type: PrivacyPolicy
  url: https://vanderhallusa.com/privacy-policy-2023/
- type: GitHubOrganization
  url: https://github.com/vanderhall
- type: MCPServer
  url: mcp/vanderhall-motor-works-mcp.yml
- type: WellKnown
  url: well-known/vanderhall-motor-works-well-known.yml
- type: Authentication
  url: authentication/vanderhall-motor-works-authentication.yml
- type: OAuthScopes
  url: scopes/vanderhall-motor-works-scopes.yml
- type: Conformance
  url: conformance/vanderhall-motor-works-conformance.yml
- type: ErrorCatalog
  url: errors/vanderhall-motor-works-problem-types.yml
- type: Conventions
  url: conventions/vanderhall-motor-works-conventions.yml
- type: Lifecycle
  url: lifecycle/vanderhall-motor-works-lifecycle.yml
- type: RateLimits
  url: rate-limits/vanderhall-motor-works-rate-limits.yml
- type: Plans
  url: plans/vanderhall-motor-works-plans-pricing.yml
- type: Packages
  url: packages/vanderhall-motor-works-packages.yml
- type: LLMsTxt
  url: llms/vanderhall-motor-works-llms.txt
- type: DomainSecurity
  url: security/vanderhall-motor-works-domain-security.yml
x-enrichment:
  date: '2026-09-02'
  status: enriched
  artifacts_added: 15
  pass: local-v1

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